/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements.  See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License.  You may obtain a copy of the License at
*
*     http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/

package javax.servlet.jsp.tagext;

import java.io.InputStream;

/**
 * Translation-time information on a JSP page.  The information
 * corresponds to the XML view of the JSP page.
 * <p>
 * <p>
 * Objects of this type are generated by the JSP translator, e.g.
 * when being passed to a TagLibraryValidator instance.
 */

public abstract class PageData {

	/**
	 * Sole constructor. (For invocation by subclass constructors,
	 * typically implicit.)
	 */
	public PageData() {
		// NOOP by default
	}

	/**
	 * Returns an input stream on the XML view of a JSP page.
	 * The stream is encoded in UTF-8.  Recall that the XML view of a
	 * JSP page has the include directives expanded.
	 *
	 * @return An input stream on the document.
	 */
	public abstract InputStream getInputStream();
}
